President Trump has lately been making a series of extraordinarily important improvements to his defense and foreign policy team. National Security Advisor John Bolton and Secretary of State Mike Pompeo are among the most obvious.

But to be effective, such leaders need a cast of highly capable subordinates. Fortunately, last week Amb. Bolton brought aboard one tested and proven to be among the best – a career intelligence professional named Fred Fleitz – to serve in key roles as the National Security Council’s Chief of Staff and Executive Secretary.

The increasingly shrill, and even unhinged, attacks currently being mounted on Mr. Fleitz by the Radical Left, Sharia-supremacists and their media echo chamber speak volumes about their fear that he’ll really help Mr. Trump succeed. Those of us privileged to have worked with Fred at the Center for Security Policy expect from him nothing less.